Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 350mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ25 mm
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU
The AirTAC MBLC25X350SU is a double-acting aluminum mini cylinder featuring a 25mm bore and 350mm stroke, engineered with an adjustable air cushion at both ends. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa, making it well-suited for long-travel positioning tasks. The built-in magnet (-S) enables direct integration with CMSG, DMSG, or EMSG sensor switches for precise end-of-stroke detection.
Unlike the base MBL series which relies on a fixed rubber bumper, this MBLC variant utilizes a screw-tunable pneumatic cushion to smoothly decelerate the piston near each stroke end, significantly reducing impact shock and vibration. The riveted rolling-packed aluminum barrel keeps the overall envelope compact and lightweight, while the heterogeneous two-way grease-retaining piston seal ensures consistent lubrication over high-frequency cycles. The U flat-end back cover provides a rigid rear mounting interface for straightforward installation.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Where the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU Is Used
Textile Loom Weft Insertion
Drives the weft insertion guide across a 350mm path, using the adjustable air cushion to prevent end-of-stroke jarring that would otherwise snap delicate yarn threads during high-speed loom cycling.
PCB Shuttle Transfer
Moves populated printed circuit board carriers between inspection lanes, relying on the 245 N push force and the -S magnet to trigger CMSG reed sensors for exact 350mm displacement without jarring loose surface-mount components.
Carton Flap Folder
Actuates the folding mechanism on compact packaging lines, where the 206 N pull force reliably tucks flaps while the tunable cushion ensures the 350mm stroke retracts smoothly without denting the fiberboard.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU the Right Cylinder?
For applications requiring less reach, the 20mm bore neighbor provides 157 N of push force at 0.5 MPa, serving as a lighter alternative. If your mechanism demands greater thrust, stepping up to the 32mm bore yields 402 N of push force at 0.5 MPa. The MBLC cushioning is specifically justified here over the standard MBL when driving the 350mm stroke at high speeds, as the tunable needle protects the end covers from heavy kinetic impacts that a fixed bumper cannot absorb.
Because this 350mm stroke generates substantial rod leverage, side-loading is a critical concern; the 10mm carbon-steel rod has low side-load tolerance and risks bending under offset loads. To manage this, pair the cylinder with an external guide rail, utilize a CA or SDB pivot mounting to accommodate arcing motions, or switch to an MBLD double-rod cylinder. Note that the U flat-end back cover provides rigid fixed mounting, and the PT tapered port threads directly into standard pneumatic fittings. As a double-acting cylinder, it does not hold position if air pressure is lost or the valve centers—the adjustable cushion only decelerates near the stroke ends and acts purely as a deceleration device, not a mechanical lock.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X350SU FAQ
This 25mm bore cylinder features a G1/8 port and an M10x1.25 rod-end thread. At 0.5 MPa it provides 245 N push and 206 N pull force. At 0.7 MPa, push increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
The cushion is a screw-tunable pneumatic needle at both ends that traps exhaust air to decelerate the piston smoothly near the stroke extremes. You tune the needle to match the load and speed, cutting impact shock and noise on long 350mm moves. It is strictly a deceleration device, not a load lock or brake.
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